Inking mechanism for multicolor printing presses



0. H. BANKER Dec. 3, 1935.

INKING MECHANISM FOR MULTICOLOR PRINTING PRESSES Original Filed July 7,1927 5 Sheets-Sheet l o. H. BANKER 2,022,840

INKING MECHANISM FOR MULTICOLOR PRINTING PRESSES Dec. 3, 1935.

Original Filed July 7, 1927 5 Sheets-Sheet 2 INVENTOR. M #7 m BY 4. Y1ATTORNEY.

0. H. BANKER Dec. 3, 1935.

INKING MECHANISM FOR MULTICOLOR PRINTING PRESSES Original Filed July '7,1927 5 Sheets-Sheet 5 INVENTOR. M 75 1 flan M BY I 7 M ATTORNEY. V

Dec. 3, 1935. Q H, BANKER 2,022,840

INKING MECHANISM FOR MULTICOLQR PRINTING PRESSES Original Filed July 7,1927 5 Sheets-Sheet 4 INVENTOR A TTORNE Y Q 3, 1935. o. H. BANKER2,022,840

INKING MECHANISM FOR MULTICOLOR PRINTING PRESSES Original Filed July 7,1927 5 Sheets-Sheet 5 INVENTOR.

6&0 74. KM

A TTORNE Y.

Patented Dec. 3, 1935 UNHTE STATEfi PATENT OFFICE INKING MECHANIS M FORMULTICOLOR PRINTING PRESSES Oscar H. Banker, Philadelphia, Pa.

7 Claims.

One object of my invention is to devise, in conjunction with amulti-color printing press machine, a novel construction and arrangementof inking mechanism wherein a continuous motion is imparted in the samedirectionto the controlling elements of the inking mechanism, thuseliminating the necessity, as has heretofore been deemed necessary, ofemploying reciprocatory or oscillatory movements.

A further object of my invention is to devise novel means for providingvariable vibrating strokes of the vibrating rolls, and for effecting theadjustment of such variable vibrations.

A further object of my invention is to devise a novel turn overmechanism for the inking rolls, whereby, on a predetermined extent ofrevolution, they are automatically locked in position, and on a furtherpredetermined revolution they are automatically unlocked, and novelmeans are provided for causing the inking rolls to cooperate in timedrelation with the impression forms to which the color they carry isadapted to be applied.

With the above and other objects in view, as will hereinafter moreclearly appear, my invention comprehends a novel inking mechanism formulti-color printing presses.

It further comprehends a novel multi-color printing press wherein thetype beds can all carry impression forms and travel in a continuous pathso that during a single cycle the proper color is applied to all of theimpression forms.

t further comprehends a novel construction and arrangement of inkingmechanism wherein the inking rolls and their controlling elements haveimparted to them a continuous rotary motion.

It further comprehends a novel turn over mechanism for the inkingmechanism wherein novel means are provided for locking and unlocking theinking rolls at the proper times.

Other novel features of construction and advantage will hereinafter moreclearly appear in the detailed description and the appended claims.

For the purpose of illustrating the invention I have shown in theaccompanying drawings a typical embodiment of it, which, in practice,will give satisfactory and reliable results. It is, however, to beunderstood that the various instrumentalities of which my inventionconsists can be variously arranged and organized, and my invention isnot limited to the exact arrangement and organization of theseinstrumentalities, as herein set forth.

Figure 1 is a top plan view of a multi-color printing press embodying myinvention.

Figure 2 is a section on line 2-2 of Figure 1.

Figure 3 is a section on line 3-3 of Figure 1.

Figure 4 is a rear elevation of the machine partly in section, thesection being taken substantially on line 44 of Figure 1.

Figure 5 is an end view of a pair of inking or form rollers.

Figure 6 is a plan view of the construction seen in Figure 5, butshowing in addition the vibrating mechanism.

Figure 7 is a plan view of portions of the vibrating mechanism.

Figure 8 is a plan View of the turn over mechanism of one set of inkingrollers.

Figure 9 is an end elevation of the construction 15 seen in Figure 8.

Figure 10 is a plan View of the turn over mechanism of another set ofinking rollers, and showing in addition a lifting cam and itscooperating mechanism.

Figure 11 is a top plan view of a portion of the inking mechanismshowing more particularly, and on a larger scale, the driving means forthe inking rolls.

Figure 12 is a side elevation of the vibration means for the inkingrolls of set C.

Similar numerals of reference indicate corresponding parts.

Referring to the drawings:-

I designates the frame of the machine, the construction and arrangementof which may vary widely in practice. The base portion of the machine isordinarily a casting in order to give sufficient rigidity to theoperation mechanism and eliminate, as much as possible, the vibrating towhich machines of this character are subjected.

The frame is provided with inner and outer anti-friction supports 2 and3 respectively, which form tracks on which the type beds 4, travel. Thetype beds are linked together by means of a continuous chain 5, and thischain is of the roller type, having the rolls 6 which travel betweenspaced guides I, which are arranged in such a manner that they form anelliptical path.

Each type bed 4 carries a longitudinally extending rack 8 having rackteeth on its bottom end adapted to be driven by a pinion 9, carried by ashaft I II, suitably journalled in the frame of the machine. The shaft I0 at its opposite end has fixed to it a gear II see Figure 3, which 50meshes with a driving pinion I2 carried by a shaft I3, suitablyjournalled in the machine frame. The shaft I3 is provided with asprocket I4 around which passes a silent chain I5 which also passesaround a sprocket IE on the shaft of a motor ll. 55

strikes the guide as It will thus be seen that when the motor is runningthe driving pinion 9 is continuously driven, thereby due to theprovision of. the chain 5 imparting a travel to all of the type beds tocause them to move in an elliptical path.

The rack bars 8 are arranged in such a manner that as one rack bar movesout of engagement with the pinion 5 the next rack bar is at the sametime beginning its engagement with it, so that an accurate andcontinuous movement is imparted to all of the type beds as they are allinterconnected by the chain 5.

In accordance with my present invention it is not necessary to employ anidle type bed and all of the type beds can carry impression forms i8.

I have thus far described the construction for causing the travel of thetype beds.

l9 designates the impression cylinder which is carried by a shaft 2ojournalled in the machine frame and provided with a gear 2! which mesheswith and is driven by the gear I i.

The impression cylinder is provided with any desired or conventionalform of sheet gripping mechanism 22.

As illustrated, the sheets to be printed are fed into the machine byhand on a feeding table 23 and moved forwardly against an adjustableguide 24 which operates in the well known and conventional manner, sothat, at the proper time, when the grippers 22 are in position toreceive the sheet,

front guides E i are automatically lifted out, and

the grippers, gripping the sheet 25, fixes it relatively to theimpression cylinder and carries it around with it.

At each revolution of the impression cylinder one color is applied tothe sheet which it carries. During the last impression, the grippers 22are released and the stripper fingers 25 are brought into action in theusual and conventional manner in order to cause the sheets to bestripped from the impression cylinder and transferred to grippers 21.The grippers 2': are in an open position to receive the sheet, theopening of the grippers being caused by a stationary cam 28. Thegrippers close and grip the paper and start to carry the sheet withthem, and the travel of the grippers is at the same peripherial speed asthat of the impression cylinder Hi, this being essential to prevent thebulging or stretching of the sheets during the time of transfer, sincethe back end of this sheet is still being received on the impressionform. a V

The grippers 21 are carried by an endless chain 36 which travels aroundsprocket wheels 3 l. The shaft 32 of one sprocket wheel 3 i is providedwith a gear 33 which meshes with an idler 3 I which in turn meshes withthe gear 25 thereby imparting a drive to the grippercarrying chain as.

Continuing the description of. the transfer mechanism, the end sprocketwheel 3| has mounted in proximity to it a curved guide After a sheetcarrying gripper travels around the end sprocket 3i it is brought to thelower stretch of the chain so that the position of the grippers is nowreversed, and the sheet carried by it-is turned bottom side up, thus theprinted side of the sheet is turned up. As the gripper carrying a sheet25 comes into contact with a stationary cam 35, such gripper is releasedand the sheet and drops to the receiving table 31, so that the sheetspile one above the other with their printed faces on top. An ad justableguide 33 is also provided which operates in the usual and conventionalmanner to effect the piling of the printed sheets on the table 3'1,

This table, as illustrated, is carried by a separate standard 39.

The table 3! in practice, can be lowered step by step as the sheets arepiled up, by means of any conventional type of table controlledmechanism, and I have therefore deemed it unnecessary in the presentinstance to describe in detail the 0011- struction and arrangement ofsuch mechanism which is well known to anyone skilled in this art.

The inking mechanism In accordance with my present construction, Iprovide inking mechanism whereby each impression form receives at thetime its individual color. For the purpose of illustration only, I haveshown the machine as adapted to print five colors and I have thereforeshown five impression forms with the necessary inking mechanism for suchforms.

The shaft 53, shown in Figures 1 and 3, has fixed to it a pinion 49. Theleft hand portion of Figure 4, is shown in section, while the right handportion is shown in side elevation, and it will be understood that Iemploy two sets of driving mechanisms for the inking rolls, and suchdriving mechanisms are substantially identical.

The pinion lil meshes with a gear 4|, journalled on a stud 62 carried bythe machine frame. This stud meshes with a gear 53 carried by a stud onthe machine frame. The gear 43 meshes with a gear Z5 which is looselymounted on a shaft 46, journalled in the machine frame.

The gear at: meshes with a pinion 41 mounted on a stud it carried by anarm $9, which at its inner end is fixed to the shaft it. The pinion ilmeshes with a pinion 53 which is fixed to a pinion iii to revolve inunison therewith, and both of the pinions and 5! are loosely mounted on.a rock shaft 52 which is carried by the arm it and an arm 53, see Figure6, said arm being fixed to the shaft 46.

The pinion 5| meshes with two pinions 55 which are mounted on the shafts55 which carry the vibrator rolls 5% These This frame is of skeletonconstruction, as best seen in Figure 5.

The vibrator rolls 58 are in frictional engagement with inking rollsshafts of which are mounted on journals 52, carried by the frame 5?, seemore particularly Figure A gear so is connected with the gear 5i and 5!to revolve in unison therewith. The gear til is best'seen in Figures 5and 6. The gear 61! meshes with a gear iii mounted on a shaft which isjournalled. in the frame 5-1, in any desired manner.

wheel 64, mounted on the shaft 65, journalled in the frame 5'4. A shaft55 has a disc 66, which has a T shaped slot t'i which adjustably carriesa stud 58 which acts as a crank pin for the con- 'necting rod 89,andwhich at its outer end is piv- V shafts 55 extend beyond the frame5'! and are iournalled'in it.

The shaft 62, carries at its other end a worm 53 which is in mesh withthe worm The tube ll has iixed to it at its outer end.'

a double fork l3, the ends of which are received in the grooves M at oneend of the vibrator rolls 55, so that during the reciprocation of theconnecting rod 59, the vibrator rolls will have imparted to them areciprocatory movement. The travel or length of stroke of the vibratorrolls can be adjusted by .adjusting the position of the stud 68 in theslot iii, by means of a fastening device 75.

I6 designates the ink fountains, which are of any desired orconventional construction, and which are carried by an auxiliary frameTi secured to the main frame I, see more particularly Figure 4. Each inkfountain is provided with a fountain roll it, an intermediatecomposition roll I9, and a doctor roll 80, all of which are constructedand operated in the usual and well known manner.

Provision is made for bringing a set of inking rolls 50 into the path ofa predetermined impression form. This is accomplished in the followingmanner.

The shaft it, see Figure 4, has what may be called a floating fulcrum,and connected to it re the arms G9 and 53 and also an arm BI whichcarries a roller 32, which is in the path of a cam 83 fixed to a shaft84. The arm BI has fixed to it, one end of a spring 85, the opposite endof which is fixed to a. stationary portion of the frame I? so that thetendency of the spring is to retain this roller 82 in engagement with acam 83.

The shaft 84 is driven from the pinion 43, as will now be explained,reference being directed to the right hand portion of Figure 4.

The pinion 4i! meshes with a gear 85 which is fixed to a pinion 85, andthis gear and pinion .are mounted on a stud 87 carried by the frame. Thegear 38 meshes with a gear 88 fixed to a pinion $9, and the gear 88 andpinion 89 are mounted on a stud shaft 90, carried by the machine frame.

The pinion 89 meshes with a pinion 9|, journalled on a stud 92 andmeshing with a gear 93, loosely mounted on the shaft 46. The gear 03meshes with a gear 9 fixed on the shaft 84, thereby causing the drive ofthe cam 83.

The shaft 84 also carries a closed cam 95 into the groove of which fitsthe roller 96 carried by the arm 91, the lower end of which is fulcrumedto the machine frame by the stud 98. A link 99 connects the arm 01 to aratchet arm I00, the opposite end of which is connected by a link IOI toanother ratchet arm I02 of the next fountain. The ratchet mechanismfeeds a predetermined amount of ink from the fountain to its rolls andis constructed and operated in the usual and well known manner, so thatdetailed description of its construction and operation is unnecessary. I

The arrangement of the ratchet mechanism is such that one cam effectsthe feed of both fountains, and during the operative stroke of a ratchetmechanism for one fountain, the ratchet mechanism for the other fountainis making its inoperative stroke.

The turnover mechanism for the inking rolls In my present invention, Iprovide turnover mechanism for the inking rolls so that the turnover iseffected by a continuous rotation of the controlling elements and thuseliminating the necessity of employing reciprocating or oscillatingparts, and thus one is able to run the inking mechanism at a much higherspeed. I also eliminate in a large measure the vibration to whichmachines of this character are subjected, due to t e recip ocat y andoscillatory movements.

The turnover mechanism is controlled and timed by a disc I 03 forming adriver which is loosely mounted on a shaft 46, but is connected with thegear 93 to revolve in unison therewith.

The disc I03 drives a disc I04 forming an indexing device, which iskeyed to the rock shaft 52, and the frame which carries all of theinking rolls is also keyed to this rock shaft .52. 5

The disc I 03 is provided with three pairs of rollers I05, arranged inspaced relationship around the periphery of the driving disc I03.

In the present machine, the inking mechanism is shown in such a mannerthat one set is provided for two intermittent movements during onerevolution of the disc I03.

During the rotation of the disc I03, the lead roller of a pair ofrollers I05 enters into one of the slots I56 on the disc I04 which istangentially disposed on the center line of the rollers, and these slotsare arranged in pairs and are disposed around the disc so that centerlines between the slots are 120 degrees apart, so that during theoperative movement of a pair of rollers I05, the disc I 05 has impartedto it one-third of a revolution, except on the last portion of therevolution. Two-thirds of a revolution is imparted to the disc I0 3instead of a one-third revolution, due to the spacing'of the pairs ofrollers on the disc I03.

This partial revolution of the disc I 64 causes a different set ofinking rolls to be brought into operative position with respect to thenext impressionform which is to receive color.

I provide novel means for locking the inking mechanism in the positionto which it has been adjusted so that during inking, a pair of inkingrolls are positively locked in their inking position. For this purpose Iprovided between each pair of slots 506 a locking roll I ill, and,during the period in which a set of inking rolls are locked these rollsI 07 ride on the periphery of the disc I 03, as shown in Figure 8.

Between each pair of rollers I65, the disc I03 which carries them isprovided with a recess or pocket I08, and, during the turnover movementof the inking mechanism, these rollers are received in one of saidpockets as will be clearly understood by reference to Figure 19.

The Walls of the slots see nearest to the center line of the two slotsare provided with curved clearances for the rollers to clear while goingin and out of the slots. disc I33 has cam portions I09 so that at thetime of finishing or starting of the turnover movement, and asheretofore explained, the center walls of the slots being curved forclearance, a space or gap H0 is left, as shown in Figure 8. A roller I07slides on the cam I09 on the disc, thereby eliminating the lost motionwhich would have been caused by the gap I I0 if the cams we were notpresent.

The rollers I I are mounted in such manner that they can be adjusted tocompensate for wear.

In order to accomplish this without upsetting the accuracy of themachine or changing the relative position of the rollers from theirlocation of 120 degrees apart, I provide two holes MI, in the disc I04which are disposed 120 degrees apart. The arm 49 is provided with asingle hole H2, and a pin IE3 is provided, which is adapted to extendthrough the selected holes III and into the hole H2, thereby positivelylocking the disc I04 with respect to the arm 49, then, while the discI04 is in a fixed position with respect to 49, the rollers Hi7 areradially ad justed.

For this p pose, the disc it i is provided with radial slots IM- throughwhich pass the studs II5, which are fixed in position by means of nutsH6, so that the position of the rollers IIlI can be adjusted tocompensate for any wear to which they have been subjected.

In the type of machine herein shown, five impression forms are employed,and it is therefore necessary to employ five fountains with theircooperating inking mechanisms, it being understood that for eachimpression form, an inking mechanism is essential so that it willreceive its color.

The set of inking mechanisms for the last of the set of five impressionforms, is located as herein shown, in proximity to the impressioncylinder, as will be best'seen from Figures 1 and 3.

The gear 2| meshes with a gear II8 carried by a shaft IE9, journalled inthe machine frame. A gear I26 is fixed to the gear II8 to revolvetherewith, and this gear meshes with an idler I2 i, suitably journalledand meshing with a gear I22, fastened at the end of the vibrator shaftI23.

The vibrator i2 3 carried by the vibrator shaft, is in frictionalengagement with the inking rolls I25, which are journalled inoscillatory arms I25. The shaft I It has fixed to it, one end of an armI21, which carries a roller I28, which is in engagement with a cam 25,fixed to the shaft 84.

I35 designates an inkfountain. I3! is the fountain roll. I32 is a doctorroll. The means for producing the proper movement of the vibrator rollis best seen in Figures 1 and 12.

The shaft 8 3 is provided with a cam I33 having a cam groove with whicha roller I35 cooperates, said roller being carried by a rock arm I35,mounted on a boss I55, carried by the machine frame. This rock arm I35at its upper end, is provided with a fork, to engage an annular grooveI3! on the vibrator roll, so that 'as the arm I35 is rocked thevibrato-r roll will be reciprocated.

The sheet delivery mechanism is provided with a pair of chains I38, seeFigures 1 and 2, which pass around sprocket wheels I39 on the shaft 32.These chains I36 also pass around sprocket wheels on the shaft MI whichis the shaft which carries the sprocket wheels (H at the delivery end ofthe machine.

7 Each chain I38 are block chains in construction, and, on the blocks,are provided with upwardly extending needle points MI. The purpose ofthese needle points is to support a sheet being delivered with theprinted side down, so

that the printed side will be supported on the needle points instead ofon the chain, and there will be no possibility of blurring the printingon the paper.

The speed of these needle chains having the needle points, are exactlythe same as the chains carrying the grippers, thereby causing them totravel as a unit, and the needle points come in contact with the printedsheet at one point will constantly remain at that one particular pointwithout pulling or scratching. This construction is more clearly shownin Figures land 2.

The operation of my novel multi-color printing press will now beapparent to those skilled in this art and is as follows.

.The sheets'to be printed are fed into the ma.- chine in any desiredmanner, and for the sake of simplicity, I have shown a machine adaptedto be fed by hand, although, as is apparent, any desired type of feedingmechanism can be attached to the machine.

Assuming now that the sheets are fed by hand,

the sheets 25 are fed one at a time against the front guide or stop 24.Assuming now that the motor I! is driving the main driving shaft I3, itwill be apparent from Figures 1 and 3 that a drive will be imparted tothe shaft I0 and through the gears II and 2| to the impression cylinderI9. The grippers act in the well known and conventional manner to gripthe sheet which has been fed to the impression cylinder, so that the fedsheet will be carried around the impression cylinder during therevolution of the latter.

The type beds 4, which carry the impression forms I8, have a continuousmovement imparted to them, since the gear 9 is, at all times, meshingwith a rack 8 secured to the bottom of a type bed, the arrangement beingsuch that when the rack of one type bed moves out of engagement with thedriving pinion 9 the rack 8 of the next type bed will come intoengagement with such driving pinion 9. The type beds are all connectedtogether by means of a link connection, as hereinbefore described, sothat all of the type beds move at the same time and have a continuousmovement imparted to them.

In the present construction, I have shown three sets of inkingmechanism, A, B, and C respectively. The sets A and B are each providedwith two pairs of inking rolls, while the set C is provided with asingle pair of inking rolls.

As shown in Figure 4, set A of the inking mechanism has a pair of inkingrolls in inking position, while the inking rolls of set B has both pairsof inking rolls out of their inking position.

As the shaft 53 is being continuously driven, the pinion M3, carried byit, drives the gear as well as the gear ill. The gear 4| drives the geari?) which is similar to the gear-85, both being alike in size and,construction of their teeth.

The gear d3 drives the gear 45, which is loosely mounted on the shaft 45and drives the gear 41, which in turn drives the gear 50. The gear 50and 5i are connected to rotate in unison, and the gear 5| meshes withtwo gears 54. The gears 54 are attached to the ends of the vibratorshafts 55 which carry the vibrator rolls 58. These vibrator rolls 56 arein frictional engagement with the inking rolls 58, so that each pair ofinking rolls 58 is being driven at the same peripherial speed as that ofthe type bed which is passing beneath them. Each set A and B of theinking mechanism has the same driving means for the inking rollers, andin Figure 4 at the left hand side of the figure, I have shown thedriving means for the inking rolls, while at the right hand side of thisFigure 4, I have shown only the driving means for the turnovermechanism.

In the construction illustrated, the arrangement is such that the firstimpression form receives its color from a pair of inking rolls of theset A. The second impression form receives its color from a pair ofinking rolls of set B. The third impression form receives its color froma pair of inking rolls of set A. The fourth impression form receives itscolor from a pair of inking rolls of set B, and the fifth impressionform receives its color from the pair of inking rolls of set C.

In other words, each impression form has its own set of inking rolls andat a selected time receives its proper color.

Operation of inking rolls WhiIe a pair of inking rolls of set A, forexof set B rocks the arm BI the turnover mechanism for set B is operatedto bring its other pair of rollers into position for the next inkingoperation of set 13.

The operation of the turnover mechanism The disc I 03 is continuouslyrevolving in the same direction, see Figure 4, and the parts are sotimed that one revolution of a disc I03 represents one cycle of themachine. Referring now also to Figures 8, 9, and 10, in Figure 8, theparts are shown in position to begin the turnover operation, and theduration of the inking period and of the turnover period are indicatedon this figure.

A roller I05 is entering a. slot I06 in the disc I 04, causing it torevolve. These slots I06 are not radially disposed. A pair of slots I06and a pair of rollers are employed, as best seen in Figure 10, in whichfigure a pair of rollers I05 are engaged in the slots I06. The mainobject in using this arrangement is to provide a gradual start and stopof the disc I04 it the heavy sets of inking rolls, thereby eliminatingshocks and jars, and enables the machine to run at a higher speed.

Locking means for disc 104 The disc I 04 which carries the inking rollsand determines their inking position is provided when a positive lockingdevice which looks the inking rolls in a positivestationarypositionwhich eliminates any possibility of roller marks onthe impression forms, as will be clear to those skilled in this art. Adisc I04 carries three radially disposed rollers spaced 120 degreesapart. The disc I03 turns the disc I04 one-third of a revolution, andthe next step'two-thirds of a revolution, and therefore the lockingrollers I0'I are in positions to which it has been moved. Two of therollers I01 travel on the periphery of the disc I03 during the inkingperiod, thus locking in position the operative pair of inking rolls.

Unlocking operation of disc 104 During the revolution of a disc I04, apocket I 08 on the disc I03 is brought into the path of a roller I01which enters said pocket, see Figure 10. The pockets I08 provideclearance for the rollers I07 when the disc I04 is unlocked.

The sets A and B have two sets of inking rolls set in position 120degrees apart, see Figure 5. Since the turnover movement is a continuousro tary motion, it will take a one-third revolution to bring one set orpair of inking rolls into operative position, and two-thirds of arevolution to bring the other pair or set of inking rolls into operativeposition.

Operation of set C of inking rolls The inking rolls I25, see Figure 3,are frictionally driven as hereinbefore explained in detail. At theproper time, the cam I29 rocks the rock arm I21, bringing the inkingrolls I into operative position and also raises the rolls at the propertime and retains them for the desired period in their inoperativeposition.

Operation of delivering the printed sheets When the grippers 22 of theimpression cylinder I9 contact with the gripper releasing member in theusual and conventional manner, which it is not necessary to show ordescribe, the front end of a sheet is released from the impressioncylinders, and the stripper 26 strips the sheet from the cylinder andtransfers it to the delivwhich carries with a needle points I 4|. Eachof the chains 30 has a gripper. The needle points prevent the printedface of a sheet contracting with the chains or the conveyor shafts, andalso provides a proper support for a sheet as it passes around the loopat the end, see Figure 1. The grippers 21 are released by the cam 35,and the sheet drops printed side up on the receiving table 31. Thistable may be automatically lowered step by step in the usual andconventional manner.

The impression cylinder makes four revolutions and during the fifth, orlast revolution, the printedsheet is delivered. The sheet is deliveredduring the fifth revolution of the impression cylinder so that it is notnecessary to have an idle type bed or a dwell between type beds, therebymaterially increasing the output or capacity of the machine, Withoutincreasing the length of the cycle.

My present application is a division of my application, Serial No.203,880, which eventuated into Patent No. 1,879,597.

It will now be apparent that I have devised a new and useful inkingmechanism for multicolor printing presses which embodies the features ofadvantage enumerated as desirable in the statement of the invention andthe above description, and while I have, in the present instance, shownand described a preferred embodiment thereof which will give in practicesatisfactory and reliable results, it is to be understood that thisembodiment is susceptible of modification in various particulars withoutdeparting from the spirit or scope of the invention or sacrificing anyof its advantages.

Having thus described my invention what I claim as new and desire tosecure by Letters Patent, is:-

1. In a multi-color printing press, sets of inking mechanisms, each sethaving a pair of inking rolls mounted on a support which is rotatableabout an axis remote from the axes of the printing rolls, andcontinuously revolving means revolved into intermittent driving relationwith said rolls to progressively move the inking rolls of said sets intoand out of their inking positions.

2. In a multi-color printing press, sets of inking mechanisms, each sethaving a pair of inkink rolls mounted on a support which is rotatableabout an axis remote from the axes of the printing rolls, andcontinuously revolving means revolved into intermittent driving relationwith said rolls to progressively move the inking rolls of said sets intoand out of their inking positions and means to lock said rolls when ininking position.

3. In a multi-color printing press, a pair of inking rolls, a supportfor said rolls rotatable about an axis remote from the axes of saidrolls, a continuously revolving driver, and a member intermittentlyrevolved by said driver and connected with said support to cause saidinking rolls to move into and out of their inking position.

4. In a multiple-color printing press, sets ofinking rolls, each sethaving a pair of inking volved driving disc, and a driven discintermittently driven by said driving disc to selectively position oneof said pairs of inking rolls in inking position.

5. In a multiple-color printing press, sets of inking rolls, each sethaving a pair of inking rolls and a support rotatable on an axis remotefrom the axes of the rolls, a continuously revolved driving disc, adriven disc intermittently driven by said driving disc to selectivelyposition one of said pairs of inking rolls in inking position andlocking rolls carried by said driven disc and locking with said drivingdisc to look a pair of inking rolls in inking position,

6. In a multi-color printing press, sets of inking rolls mounted forrotation about an axis remote from the axes of the rolls, a continuouslyrevolving driver, a driven member intermittently driven by said driverand connected with said support to cause two intermittent turn overmovements of said inking rolls during one revolution of said driver.

'7. In a multi-color printing press three sets of inking rollers, two ofwhich have two pairs of I rolls and the third of which has a single pairof rolls, and means to bring a pair of rolls of each set into inkingposition in selected timed relation with each other.

' QSCAR I-I. BANKER.

